User guide

Hardware

890 USE 108 00 August 2001

Program Storage using FLASH RAM & PCMCIA (E984-258/265/275/285 Only)

Program Storage

Overview

The E984-258/265/275/285 PLCs feature 1 megabyte of internal FLASH RAM. 480

kilobytes are available for application storage. The remaining area is reserved for

kernel, executive, and special code use. In addition, the E984-275/285 PLCs have

a PCMCIA auxiliary memory socket for storage.

The E984-275/285 PLCs supports industry standard memory size PCMCIA cards

up to 4 megabytes. You can use this area of memory (PCMCIA/FLASH RAM) to

store the controller and I/O configuration, ladder logic programs, and 4x registers.

PCMCIA FLASH/FLASH RAM memory cards offer a more permanent means of

storage over battery backed storage. They have the added benefit of transporting

data onto other PLC platforms.

Two PCMCIA cards are available from Modicon: AS-FLSH-004; (4 megabytes,

150nS, -40 ... +70C, without conformal coating, with pull-tab), and AS-FLSH-004C;

(4 megabytes, 150nS, -40 ... +70C, with conformal coating, with pull-tab). These

PLCs require AMD commercial PCMCIA cards, (part number AmCOXXCFLKA, 150

nS, 0 ... 60C, XX is the memory size of the card), or its equivalent, provided it uses

AMD FLASH chips.

Writing to

PCMCIA/Internal

FLASH RAM

Auxiliary

Memory

Writing is performed by using the available options in Concept 2.1 or higher

programming panel software. Click on Online, Online Control Panel, Stop controller,

Yes, Flash program. The Save to Flash screen appears after following this

sequence.

Note: The E984-258/265 does not support the PCMCIA card.

Note: Applications stored on EEPROM using 0984, A984 or E984-24x/251/255

PLCs cannot be transferred into FLASH RAM on the E984-258/265/275/285 PLCs.

Note: The Flash Program option is accessible only if Connected and the Concept

project and PLC program are equal.

Note: It is recommended that the Compact be in STOP Mode. FLASH is

unavailable if the controller is running.